We found out that wrapup duration of callback call is always recorded 0s.
We have asked your support team the reason why , and got the following answer.
"According to US, these examples are all callbacks. Wrapups for Callbacks are always 0 duration. This is an intentional design. Please submit enhancement request if you don't like this design."
So, I posted this request.
Please enhance/improve to record/show actual wrapup duration in conversation detail/timeline on portal.
Thanks,